RELICS: Strong-lensing Analysis of the Massive Clusters MACS J0308.9+2645 and PLCK G171.9-40.7

Ana Acebron; Nathália Cibirka; Adi Zitrin; Dan Coe; Irene Agulli; Keren Sharon; Maruša Bradač; Brenda Frye; Rachael C. Livermore; Guillaume Mahler; Brett Salmon; Keiichi Umetsu; Larry Bradley; Felipe Andrade-Santos; Roberto Avila; Daniela Carrasco; Catherine Cerny; Nicole G. Czakon; William A. Dawson; Austin T. Hoag; Kuang Han Huang; Traci L. Johnson; Christine Jones; Shotaro Kikuchihara; Daniel Lam; Lorenzo Lovisari; Ramesh Mainali; Pascal A. Oesch; Sara Ogaz; Masami Ouchi; Matthew Past; Rachel Paterno-Mahler; Avery Peterson; Russell E. Ryan; Irene Sendra-Server; Daniel P. Stark; Victoria Strait; Sune Toft; Michele Trenti; Benedetta Vulcani

doi:10.3847/1538-4357/aabe29

RELICS: Strong-lensing Analysis of the Massive Clusters MACS J0308.9+2645 and PLCK G171.9-40.7

Ana Acebron, Nathália Cibirka, Adi Zitrin, Dan Coe, Irene Agulli, Keren Sharon, Maruša Bradač, Brenda Frye, Rachael C. Livermore, Guillaume Mahler, Brett Salmon, Keiichi Umetsu, Larry Bradley, Felipe Andrade-Santos, Roberto Avila, Daniela Carrasco, Catherine Cerny, Nicole G. Czakon, William A. Dawson, Austin T. HoagKuang Han Huang, Traci L. Johnson, Christine Jones, Shotaro Kikuchihara, Daniel Lam, Lorenzo Lovisari, Ramesh Mainali, Pascal A. Oesch, Sara Ogaz, Masami Ouchi, Matthew Past, Rachel Paterno-Mahler, Avery Peterson, Russell E. Ryan, Irene Sendra-Server, Daniel P. Stark, Victoria Strait, Sune Toft, Michele Trenti, Benedetta Vulcani

Astronomy

Research output: Contribution to journal › Article

9 Scopus citations

Abstract

Strong gravitational lensing by galaxy clusters has become a powerful tool for probing the high-redshift universe, magnifying distant and faint background galaxies. Reliable strong-lensing (SL) models are crucial for determining the intrinsic properties of distant, magnified sources and for constructing their luminosity function. We present here the first SL analysis of MACS J0308.9+2645 and PLCK G171.9-40.7, two massive galaxy clusters imaged with the Hubble Space Telescope, in the framework of the Reionization Lensing Cluster Survey (RELICS). We use the light-traces-mass modeling technique to uncover sets of multiply imaged galaxies and constrain the mass distribution of the clusters. Our SL analysis reveals that both clusters have particularly large Einstein radii (θ _E > 30″ for a source redshift of z _s = 2), providing fairly large areas with high magnifications, useful for high-redshift galaxy searches (∼2 arcmin² with μ > 5 to ∼1 arcmin² with μ > 10, similar to a typical Hubble Frontier Fields cluster). We also find that MACS J0308.9+2645 hosts a promising, apparently bright (J ∼ 23.2-24.6 AB), multiply imaged high-redshift candidate at z ∼ 6.4. These images are among the brightest high-redshift candidates found in RELICS. Our mass models, including magnification maps, are made publicly available for the community through the Mikulski Archive for Space Telescopes.

Original language	English (US)
Article number	42
Journal	Astrophysical Journal
Volume	858
Issue number	1
DOIs	https://doi.org/10.3847/1538-4357/aabe29
State	Published - May 1 2018

Keywords

galaxies: clusters: individual (MACS J0308.9+2645, PLCK G171.9-40.7)
gravitational lensing: strong

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.3847/1538-4357/aabe29

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Acebron, A., Cibirka, N., Zitrin, A., Coe, D., Agulli, I., Sharon, K., Bradač, M., Frye, B., Livermore, R. C., Mahler, G., Salmon, B., Umetsu, K., Bradley, L., Andrade-Santos, F., Avila, R., Carrasco, D., Cerny, C., Czakon, N. G., Dawson, W. A., ... Vulcani, B. (2018). RELICS: Strong-lensing Analysis of the Massive Clusters MACS J0308.9+2645 and PLCK G171.9-40.7. Astrophysical Journal, 858(1), [42]. https://doi.org/10.3847/1538-4357/aabe29

RELICS : Strong-lensing Analysis of the Massive Clusters MACS J0308.9+2645 and PLCK G171.9-40.7. / Acebron, Ana; Cibirka, Nathália; Zitrin, Adi; Coe, Dan; Agulli, Irene; Sharon, Keren; Bradač, Maruša; Frye, Brenda; Livermore, Rachael C.; Mahler, Guillaume; Salmon, Brett; Umetsu, Keiichi; Bradley, Larry; Andrade-Santos, Felipe; Avila, Roberto; Carrasco, Daniela; Cerny, Catherine; Czakon, Nicole G.; Dawson, William A.; Hoag, Austin T.; Huang, Kuang Han; Johnson, Traci L.; Jones, Christine; Kikuchihara, Shotaro; Lam, Daniel; Lovisari, Lorenzo; Mainali, Ramesh; Oesch, Pascal A.; Ogaz, Sara; Ouchi, Masami; Past, Matthew; Paterno-Mahler, Rachel; Peterson, Avery; Ryan, Russell E.; Sendra-Server, Irene; Stark, Daniel P.; Strait, Victoria; Toft, Sune; Trenti, Michele; Vulcani, Benedetta.

In: Astrophysical Journal, Vol. 858, No. 1, 42, 01.05.2018.

Research output: Contribution to journal › Article

Acebron, A, Cibirka, N, Zitrin, A, Coe, D, Agulli, I, Sharon, K, Bradač, M, Frye, B, Livermore, RC, Mahler, G, Salmon, B, Umetsu, K, Bradley, L, Andrade-Santos, F, Avila, R, Carrasco, D, Cerny, C, Czakon, NG, Dawson, WA, Hoag, AT, Huang, KH, Johnson, TL, Jones, C, Kikuchihara, S, Lam, D, Lovisari, L, Mainali, R, Oesch, PA, Ogaz, S, Ouchi, M, Past, M, Paterno-Mahler, R, Peterson, A, Ryan, RE, Sendra-Server, I, Stark, DP, Strait, V, Toft, S, Trenti, M & Vulcani, B 2018, 'RELICS: Strong-lensing Analysis of the Massive Clusters MACS J0308.9+2645 and PLCK G171.9-40.7', Astrophysical Journal, vol. 858, no. 1, 42. https://doi.org/10.3847/1538-4357/aabe29

Acebron, Ana ; Cibirka, Nathália ; Zitrin, Adi ; Coe, Dan ; Agulli, Irene ; Sharon, Keren ; Bradač, Maruša ; Frye, Brenda ; Livermore, Rachael C. ; Mahler, Guillaume ; Salmon, Brett ; Umetsu, Keiichi ; Bradley, Larry ; Andrade-Santos, Felipe ; Avila, Roberto ; Carrasco, Daniela ; Cerny, Catherine ; Czakon, Nicole G. ; Dawson, William A. ; Hoag, Austin T. ; Huang, Kuang Han ; Johnson, Traci L. ; Jones, Christine ; Kikuchihara, Shotaro ; Lam, Daniel ; Lovisari, Lorenzo ; Mainali, Ramesh ; Oesch, Pascal A. ; Ogaz, Sara ; Ouchi, Masami ; Past, Matthew ; Paterno-Mahler, Rachel ; Peterson, Avery ; Ryan, Russell E. ; Sendra-Server, Irene ; Stark, Daniel P. ; Strait, Victoria ; Toft, Sune ; Trenti, Michele ; Vulcani, Benedetta. / RELICS : Strong-lensing Analysis of the Massive Clusters MACS J0308.9+2645 and PLCK G171.9-40.7. In: Astrophysical Journal. 2018 ; Vol. 858, No. 1.

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abstract = "Strong gravitational lensing by galaxy clusters has become a powerful tool for probing the high-redshift universe, magnifying distant and faint background galaxies. Reliable strong-lensing (SL) models are crucial for determining the intrinsic properties of distant, magnified sources and for constructing their luminosity function. We present here the first SL analysis of MACS J0308.9+2645 and PLCK G171.9-40.7, two massive galaxy clusters imaged with the Hubble Space Telescope, in the framework of the Reionization Lensing Cluster Survey (RELICS). We use the light-traces-mass modeling technique to uncover sets of multiply imaged galaxies and constrain the mass distribution of the clusters. Our SL analysis reveals that both clusters have particularly large Einstein radii (θ E > 30″ for a source redshift of z s = 2), providing fairly large areas with high magnifications, useful for high-redshift galaxy searches (∼2 arcmin2 with μ > 5 to ∼1 arcmin2 with μ > 10, similar to a typical Hubble Frontier Fields cluster). We also find that MACS J0308.9+2645 hosts a promising, apparently bright (J ∼ 23.2-24.6 AB), multiply imaged high-redshift candidate at z ∼ 6.4. These images are among the brightest high-redshift candidates found in RELICS. Our mass models, including magnification maps, are made publicly available for the community through the Mikulski Archive for Space Telescopes.",

keywords = "galaxies: clusters: individual (MACS J0308.9+2645, PLCK G171.9-40.7), gravitational lensing: strong",

author = "Ana Acebron and Nath{\'a}lia Cibirka and Adi Zitrin and Dan Coe and Irene Agulli and Keren Sharon and Maru{\v s}a Brada{\v c} and Brenda Frye and Livermore, {Rachael C.} and Guillaume Mahler and Brett Salmon and Keiichi Umetsu and Larry Bradley and Felipe Andrade-Santos and Roberto Avila and Daniela Carrasco and Catherine Cerny and Czakon, {Nicole G.} and Dawson, {William A.} and Hoag, {Austin T.} and Huang, {Kuang Han} and Johnson, {Traci L.} and Christine Jones and Shotaro Kikuchihara and Daniel Lam and Lorenzo Lovisari and Ramesh Mainali and Oesch, {Pascal A.} and Sara Ogaz and Masami Ouchi and Matthew Past and Rachel Paterno-Mahler and Avery Peterson and Ryan, {Russell E.} and Irene Sendra-Server and Stark, {Daniel P.} and Victoria Strait and Sune Toft and Michele Trenti and Benedetta Vulcani",

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AU - Acebron, Ana

AU - Cibirka, Nathália

AU - Zitrin, Adi

AU - Coe, Dan

AU - Agulli, Irene

AU - Sharon, Keren

AU - Bradač, Maruša

AU - Frye, Brenda

AU - Livermore, Rachael C.

AU - Mahler, Guillaume

AU - Salmon, Brett

AU - Umetsu, Keiichi

AU - Bradley, Larry

AU - Andrade-Santos, Felipe

AU - Avila, Roberto

AU - Carrasco, Daniela

AU - Cerny, Catherine

AU - Czakon, Nicole G.

AU - Dawson, William A.

AU - Hoag, Austin T.

AU - Huang, Kuang Han

AU - Johnson, Traci L.

AU - Jones, Christine

AU - Kikuchihara, Shotaro

AU - Lam, Daniel

AU - Lovisari, Lorenzo

AU - Mainali, Ramesh

AU - Oesch, Pascal A.

AU - Ogaz, Sara

AU - Ouchi, Masami

AU - Past, Matthew

AU - Paterno-Mahler, Rachel

AU - Peterson, Avery

AU - Ryan, Russell E.

AU - Sendra-Server, Irene

AU - Stark, Daniel P.

AU - Strait, Victoria

AU - Toft, Sune

AU - Trenti, Michele

AU - Vulcani, Benedetta

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N2 - Strong gravitational lensing by galaxy clusters has become a powerful tool for probing the high-redshift universe, magnifying distant and faint background galaxies. Reliable strong-lensing (SL) models are crucial for determining the intrinsic properties of distant, magnified sources and for constructing their luminosity function. We present here the first SL analysis of MACS J0308.9+2645 and PLCK G171.9-40.7, two massive galaxy clusters imaged with the Hubble Space Telescope, in the framework of the Reionization Lensing Cluster Survey (RELICS). We use the light-traces-mass modeling technique to uncover sets of multiply imaged galaxies and constrain the mass distribution of the clusters. Our SL analysis reveals that both clusters have particularly large Einstein radii (θ E > 30″ for a source redshift of z s = 2), providing fairly large areas with high magnifications, useful for high-redshift galaxy searches (∼2 arcmin2 with μ > 5 to ∼1 arcmin2 with μ > 10, similar to a typical Hubble Frontier Fields cluster). We also find that MACS J0308.9+2645 hosts a promising, apparently bright (J ∼ 23.2-24.6 AB), multiply imaged high-redshift candidate at z ∼ 6.4. These images are among the brightest high-redshift candidates found in RELICS. Our mass models, including magnification maps, are made publicly available for the community through the Mikulski Archive for Space Telescopes.

AB - Strong gravitational lensing by galaxy clusters has become a powerful tool for probing the high-redshift universe, magnifying distant and faint background galaxies. Reliable strong-lensing (SL) models are crucial for determining the intrinsic properties of distant, magnified sources and for constructing their luminosity function. We present here the first SL analysis of MACS J0308.9+2645 and PLCK G171.9-40.7, two massive galaxy clusters imaged with the Hubble Space Telescope, in the framework of the Reionization Lensing Cluster Survey (RELICS). We use the light-traces-mass modeling technique to uncover sets of multiply imaged galaxies and constrain the mass distribution of the clusters. Our SL analysis reveals that both clusters have particularly large Einstein radii (θ E > 30″ for a source redshift of z s = 2), providing fairly large areas with high magnifications, useful for high-redshift galaxy searches (∼2 arcmin2 with μ > 5 to ∼1 arcmin2 with μ > 10, similar to a typical Hubble Frontier Fields cluster). We also find that MACS J0308.9+2645 hosts a promising, apparently bright (J ∼ 23.2-24.6 AB), multiply imaged high-redshift candidate at z ∼ 6.4. These images are among the brightest high-redshift candidates found in RELICS. Our mass models, including magnification maps, are made publicly available for the community through the Mikulski Archive for Space Telescopes.

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